Timer



c. A. KUE N ZEL, JR

TIMER Filed Sept. 16, 1922 ATTORN EYS.

Patented Dec. 16, 1924.

Q stares oHa Es A. K nNznL, JR,

015 CREIGHTON, NEBRASKA.

TIMER.

,Application filed September 16, 1922. Serial No. 588,550.

To all whom it may concern 3 tlmqw i that- CHA E IWENZ Jr., a citizen of ,the;United States, residing at, Creighton, in the county OfliIlOX, State of- Nebrasl ;a,- have invented anew and useful i im o jwh c thefo i vl g a 1 efic tlo iMri ve tiQ r late i ta nov C t tion of a ;d1str 1butoror t mer for nternal combustion engines either of the stationary type or of, the typeemployed in con unct1on withautomobilesand isjadapted to be em- ,ployed any desired. type of internal combustion engine, having any desired number of cylinders, novel ;means being provided :fe kta l t tiaa-fl a semb y a di se i e tie p i ep incira joper t Par To the above ends my present invention consists particularly of a novel construction V and ma'nner of assembling the terminal posts and the terminal casings carrying the :b .QQIlt LC de c said pos n crca ins 'beingheld in assembled position by easily remo a l tra ers fa ning de i c w s co ter 11i w ere y a o (th pa read ly ac e sible. a a i e i P rpos lofii p ctiem v 761. .lav .lnen an r pa It further consistsof otherf novel features of construction, all as will be hereinafter l yise aliort For the purpose of illustratingmy invention, I have shown in the accompanying drawings forms thereof which are at present preferred by me, since they will give in practice satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

Figure 1 represents a side elevation of a timer, embodying my invention.

Figure 2 represents a section on line 22 Figure 1, showing also the customary electrical connections to the spark plugs and their adjuncts, certain of the parts being shown in elevation.

Figure 3 represents a side elevation of a terminal post, spring, ball contact and terminal casing in detached position, showing the manner of assembling the parts.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings.

1 designates my novel construction of timer, the same comprising the casing 2 of nsulat ng mater al having rotatably inount ed therein the timer shaft 3 which is connected with the engine shaft n any conventional manner, so as to be driven thereby, although, as is apparent, it canbe driven in any desired manner.

Thejshaft 3 carries acam or arm a which rotates in unison therewithand is provided iwith a curved contact surface 5const tut1ng a rotor which is adapted to contact with a ball contact 6 mounted in the bore 7 of the contact casingS, the inner terminal of said bore 7 being slightly contracted, so as to retain the ball within it, substantially as seen in Figure 2, and the outer end ofsaid casing being counterbored at 8*: to receive the head of the terminal post next to be referred to.

9 designates afollower adapted to contact with the ball 6 against which bears one end of a spring "10, the opposite end of said spring contacting with the head 11 0f the threaded terminal post l2, which is provided with a' pair of locknuts 13, said post passing through the annular wall 14; of the casing 2. "The follower 9 may be braZed directly to the spring 10 desiredj 15 designates a transverse aperture through the head 11 which is adapted to align with the transverse aperture 15 through the casing 8 when the parts are in assembled position, said head and casing being held in assembled position by means of a transverse fastening as a cotter pin 17 or the like. The electrical connections 21 from the posts 12 to the battery 18 and to the spark plugs 19 of the motor cylinders 20 are of the usual construction as shown in Figure 2, and need not be described in detail, it being apparent that the number of the contact devices seen in Figure 2 may be increased or diminished according to re quirements.

It will be understood that as the shaft 3 and the arm 4: rotate said arm 4L will engage with the ball contacts 6, thus elfecting the intermittent closing and opening of the respective circuits, said ball contacts being preferably in the form of steel balls or their equivalent, which are properly tempered and hardened to withstand wear, and the arm 4L which is in the form of a cam is preferably also formed from case hardened steel, the rotary contact 4 preferably causing the outward movement of the ball contacts 6 against the tension of the springs 10, so that the desired rapid opening and closing of the electrical circuit is obtained.

I desire to call special attention to the manner of assembling each terminal casing 8 and its terminal post 12, since it will be apparent that the ball 6, the follower 9 and the spring 10 having been placed in position and the head 11 of the terminal post 12 having been secured within the flange 14, it is only necessary to bring the apertures 15 and 16 into alignment and then insert the transverse fastening as the cotter pin 17 therethrough, so that the parts when assembled will appear as seen in Figure 2. This construction facilitates the assembling and dismantling of the device, since it will be apparent that this can be readily effected by the insertion or withdrawal of the cotter pin 17, which can be almost instantaneously done without necessitating the removal of the other parts of the device.

A timer constructed in accordance with my invention can be very cheaply and expeditiously manufactured and readily assembled or disconnected by an ordinary mechanic and without requiring the use of any special implements, as is evident. Any suitable form of transverse fastening 1,7 may be employed but I preferably use a split pin or cotter pin of the general character shown.

It will now be apparent that I have devised a novel and useful timer which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have, in the present instance shown and described a referred embodiment thereof which will glve in practice satisfactory and reliable results, it is to be understood that such embodiment is susceptible of modification in various particulars without departing from the spirit or Scope of the invention or sacrificing any of its advantages.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a. timer, an insulating casing, a terminal casing, a ball contact therein, a spring and follower for said ball contact, a terminal post having an enlarged head, said head and easing having aligning transverse apertures therethrough, and a cotter pin passing through the transverse aligned slots of said casing and head for retaining said parts in assembled position.

2. In a timer, an insulating casing, a terminal casing having a counterbore in its outer end, a ball contact in said casing, a terminal post having a head seated in said counterbore, tension devices intermediate said head and ball contact, said casing and head having aligning transverse apertures therein, and a fastening device common to said slots.

3. In a timer, a non-yielding rotative contact, an insulating casing, a terminal casing having a counterbore in its outer end, a ball contact in said casing, a terminal post having a head seated in said counterbore and passing through said casing, a tension device intermediate said head and ball contact, said casing and head having aligning transverse apertures therein, and a fastening device common to said apertures.

CHARLES A. KUENZEL, Jx. Witness:

GRACE R. FENTON. 

